1 Samuel 20:41-42

As soon as the boy was gone, David came out from where he had been hiding near the stone pile. Then David bowed three times to Jonathan with his face to the ground. Both of them were in tears as they embraced each other and said good-bye, especially David. At last Jonathan said to David, “Go in peace, for we have sworn loyalty to each other in the LORD’s name. The LORD is the witness of a bond between us and our children forever.” Then David left, and Jonathan returned to the town.